Aquifer Biogeochemistry

We investigate microbial processes of major element cycles (e.g., carbon, nitrogen, sulphur) in subsurface systems, especially those taking place in the absence of molecular oxygen. Special emphasis is placed on questions related to biodegradation of hydrocarbons; we aim to elucidate degradation pathways and to identify key degraders in model cultures and under in situ conditions at contaminated sites. State-of-the-art stable isotope methods – compound specific stable isotope analysis (CSIA) and stable isotope probing (SIP) – are essential tools of our experimental research. A strong cooperation with several departments of the UFZ and external partners is a central point of our working group.